Nambu ironware originated in the mid-17th century in Morioka, a place that is suited to ironworking due to its abundant iron and clay resources. It began when the lord of the Nambu Domain (now Iwate Prefecture) invited metal casters from Kyoto to make tea pots. Thereafter, the artisans created various cast iron items, but it was during the Edo period (1603-1868) when the iconic "tetsubin" or small iron kettle was born, and its use soon spread to the common folk.

It is said that hot water boiled in a Nambu iron kettle has a more mellow taste, and makes tea or coffee more delicious. Nambu iron kettles are also highly durable and can be used for a lifetime.

Though they have slightly different histories, ironware from both Morioka and Oshu are today collectively referred to as Nambu ironware. Besides the popular iron kettles, you can also find cooking pots and pans, accessories, wind chimes, and various ornaments.